There are basically four types of storage in your range:
1) Hard drive and memory cards: While two different media, the end up getting treated similarly: You capture the video. Once the hard drive is full, you need to move the video somewhere. You can either transfer directly to a DVD burner or to your computer. Video quality is between miniDV tape (best) and DVD (worst). If you are connecting to the computer anyway, why not do a bit of editing... take aout the crappy shots, add some transitions and credits and the date. Presuming your computer has a DVD burner, you can make and share your memories. Video file transfer via USB.
2) If you are willing to do the above, then just use miniDV tape: The tape becomes your archive, has a long shelf life, basically allows for unlimited shooting (only limited by the number of 1 hour blank tapes you carry - and the tapes are cheap). The "DV" in miniDV = Digital Video... not to be confused with analog video from the VHS tape days. MiniDV tape camcorder provide the best quality video compared to the other media. MiniDV transfers via FireWire. Depending on your computer, you *might* need to add a firewire port to your computer. This is generally cheap and easy to do. Of course, you don't have to transfer to to a comupter - you can just use the camcorder as the playback mechanism.
3) DVD based: Poorest video quality for editing; 20 minutes per single sided DVD - manually flip it over for 40 minutes if you got double sided. Discs are not a stable storage media, so expect to end up with discs you can't play back. Finalize or not? If you want to edit, you will need a drawer loading DVD drive on your computer and a DVD ripper. If you never ever want to edit, and can use the camera as the playback mechanism then a DVD based camcorder migh be the right thing... most people can't predict the future. This is not a recommended method. These camcorders should be removed from the market.